Steam boiler



Oct 4! 1 P. N.l F. LANGEN STEAM BOILER Filed Dec. 1'7 1924 2Sheets-Sheet 1 Allorney. l

,Oct 4,

P. N.- F. LANGEN STEAM BOILER Filed Dec, 17 1924 2 Sheets-Sheet 2nvnfor:

A Harney.

Patented Oct. 4, 1927.

feu-risc PATENT Aotrlic-a.'

'PETER "NIxoLAUs FLIX 4"inaivcfn'n, ynr vALPARAis, CHILE.

Application ied'ncemb'ern', iaaa'seriai No. 75e,5s7,'and in GermanyrFebruary 2s', 1924.

My invention relates tok improvements in steam boilers, and moreparticularly in boilers in Which'in case of a sudden increase of theconsumption yof steam the feed Water supply is interrupted, so that ltheincreased amount of steam is supplied Without changing the combustion ofthe fuel merely 'by vaporization of the Water from high level to lowlevel. The object of the improvements is to -provide a boiler in whichthe heat storingcapa'city of the boiler is increased by increasing the`volume of Water 'at the disposal for vaporization and included betweenthe high and low levels. For this :purpose the number `or the size 'ofthe upper steam and Water chambers might 'be increased. This, however,is expensive particularly in lhigh pressure boilers, and in additiononly a part of the capacity ot the steain 'and Water chamber yis madeuse iot for increasing the volume included kbetween the 'hig-.i and lowlevels. My invention consists in increasing 'the said volume or theWater storiiig effect by connecting the stea'rn and Water chamber vorupper boiler drum 'With a subsidiary Vchamber "orchambers the height 'ofYwhich is substantially equal to the difference of the high and y'lowlevels, and which are disposed so that they are nearly *or ventirelyiilled When the Water Within the upper boiler drum is at high level, andthat they are nearly or entirely empty Whenfthe Water lWithin the saidboiler drum is at `loi'v level. Preferably lthe said subsidiary Waterchamber is made in sections each consisting of a pipe Vequal orsub's't'a"ntia-l'l'y equal in :diameter to the distance between the highand lowlevel's, in Which case Vthe said v'subsidiary chamber may beconstructed from seamlesstubes.

vFor the purpose of vexplaii'iing the invention an example embodying the"saine has been shown in the accompanying drawing in which the 'samereference 'characters have been used in all. the vieivsfto indicateIcorresponding parts. In p said drawing,

Fig. l, is a sectional elevation showing the boiler, and y Ai7`ig. 2,is` atop plan View With the top 'part of the brickvvork removed 'to showthe pipes storing the water.

In thelexarnple shown int-he drawing the boiler comprises a lovver'Water drum a and an upper 'steam and lWater ydrum belonnect'ed by abankof Water tubes fc. The letters s and t indicate respectivelythe feedWater inlet'an'd the steam off-take. Below the tubes c there is a grateld," and inthe u'elthere is aA superheater made' in two Sections @and f,and an apparatus g for heating air yforsupportin-g combustion. The

portion of the brickvvork in Which rthe 4upv "saine height as 7the saidlevels. The pipes 'are connected respectively with'the Water and steamyspaces lof 'the drum Z1 by pipes :n and o,l the pipes 0v ending at thetop parts 7 'of the fprpes 'fm and the. ldrum I), :and 'the pipes nconnecting the bottom parts olf l'the pipes'and the drum. Therefore, thevolume of Water included between the "high and liv levels `is large, andthe boiler has a yhigh v'heat storing elfeet-` The aggregate capacity ofthe pipes m fis a multiplel of the part of"thecapacity of the drum -bincludedb'etween the high andy low 'levels and 'y, vso that 1n 'case ofria suddenv lincrease of 'the consumption of 'steam the supplyof thefeed Waterffmay be 'interrupted' and vapori'z'ati'on 'takeplaceexclusively. by the heat 'stored Avv'ithnl the boiler Yand "the pipesfor 'la "substantial period 'o"f*"tinie, that vis.during the timev ofthe increased :consumption kof steam. v f

To insure 'a good heatand Water storing effect @arev 'must be raken 'um'the Waite-f f Within :the fpips m be 4always `at boiling teinper'ature,and'for this purpose I vconnect the pipes m AdivircoIn"ers,Q9 ivithftheloW'ei Water drum c, through which circulation of thewvateris'jinaintained. I Y

As' appears `romFig. Qthe Whole area of storing Y'the boiler'may be madeuse 4ot' for providing .n In 'view of 4the diameter.v df the pipes fm Iam kenabled to provide` seamless pipes, so that the cost of the Systemis'compara- While ifndfwbie the ihvhtin refrenceh'as been Lmade toaparticular example pembodying the same, .'Ij vvi'sh it "to beundersjaiod that I 'do autumn myseifito thecca 'struction `andarnangenient'off'the storing chamber m shown infthe drawing, 'nor i0 theuse of the said storing chamber in a boiler of the type shown in thefigures.

I claim:

l. A steam boiler, comprising a member having a steam space and a waterspace, and water storing means having a height substantially equal tothe distance between the high and low levels of said member and'disposed substantially between the horizontal planes passing throughthe high and low levels of said member and communicating near its bottomwith the water space of said member, said storing means having acapacity suiicient to permit vaporization within the boiler in case ofincreased consumption of steam without supplying feed water to theboiler for a substantial period of time.

2. A steam boiler, comprising a member having a steam space and a waterspace, and water storing means having a height substantially equal tothe distance between the high and low levels of said member andIdisposed substantially between the horizontal planes passing throughthe high and llow levels of said member and communicating Vnear itsbottom with the water space of said member, said storing means having acapacity a multiple of the capacity of the part of said member includedbetween the high and low levels of said member. l

3. A steam boiler, comprising a member having a steam space and a waterspace, water storing means having a height substantially equal to thedistance betweenthe high and low levels of said member and disposedsubstantially between the high and low levels of said member, andseparate pipes connectingsaid water storing means near its top andbottom respectively with the steam and water spaces ofsaid member, saidstoring means having a capacity sufficient to permit vaporization withinthe boiler without supplying fee-d water thereto for a substantialperiod of time. Y Y

4. A steam boiler,icomprising a member having a steam space and a waterspace, and substantially horizontal storage pipes having a diametersubstantially equal to the distance between the high and low levels ofsaid member and disposed substantially betweenl the horizontal planesincluding the high and low levels of said member and communieating neartheir bottoms with the water space of 'said member, said pipes having atotal capacity suiiicient to permit vaporization ofthe water within theboiler without supplying feed water thereto for ka sublow levels of saidmember, and separate pipes connecting sai-d storage pipes near theirtops and bottoms respectively with the steam and water spaces of saidmember, said pipes having a total capacity sufficient Vto permitvaporization of the water within th-e boiler without supplying feedwater thereto for a substantial period of time.

6. A steam boiler, comprising an upper drum having' a steam space and awater space, a lower drum communicating with the upper drum, waterstoring means having a height substantia ly equal to the distancebetween the high and low levels of said upper drum and disposedsubstantially between the planes including the said high and low levelsand communicating near its bottom with lthe water space of said upper ydrum, said storing` means having a capacity sufficient to permitvaporization in case of an increased consumption of steam for asubstantial period of time without supplying feed water to the boiler,and a connection between said lower drum and said water storing means ata part away from said up: per drum.

7. A steam boiler, comprising an upper drum having a steam space and awater space, .a lower drum communicating with the upper drum, waterstoring means having a height substantially equal toY the distancebetween the high and low levels of said upper drum and disposedsubstantially between the planes including the said high and low levels,separate pipes connectingV said water storing means near its top andbottom respectively with the steam and water spaces of said upper drum,said storing means having a capacity suiiicientrto permit vaporizationin case of kan increased consumption of steam for a substantial periodof time wit-hout supplying feed water to the boiler, and aconnectionbetween said lower drum'and said water storing` means at apart away from said upper drum. Y y i i 8. A steam boiler. comprising anupper drum having a steam space'and a water space, a lower drumcommunicating with the upper drum, substantially horizontal storagepipes having a diameter substan-y tially equal to the distance betweenthe high and low levels of said upper drum and disposed betweenthe'planes includingthe said high and low levels, separate pipes foreach storage pipe connecting the same near their tops and bottomsrespectively with thesteam f and water spaces Yof said drums,and'downcomers connecting said lower drum with said storage pipes atparts away from said upper drum, the total capacity of said storagepipes being a multiple of that of the space of said upper drum includedbetween the high and low levels of said upperdrum. i

9.l A steam boiler, comprisingfa member stantially equal to the distancebetween thel high and low levels of said member and disposedsubstantially between the horizontal planes passing through the high andlow levels of said member and communicating near its bottom with thewater space of said member, said storing means having a capacitysufiicient to permit vaporization within the boiler in case of increasedconsumption of steam without supplying feed water to the boiler for asubstantial period of time, heating means, and means for preventingdirect action of said heating means on said water storing means. v

10. A steam boiler, comprising a member having a steam space and a Waterspace, substantially horizontal storage pipes having a diametersubstantially equal to the distance between the high and low levels ofsaid member and disposed substantially between the horizontal planesincluding the high and low levels of said member and communieating neartheir bottoms with the water space of said member, said pipes having atotal capacity suiiicient to permit vaporization of the water within theboiler without supplying feed water thereto for a substantial period oftime, heating means, and means for preventing direct action of saidheating means onl said storage pipes.

1l. A steam boiler, comprising an upper drum having a steam space and awater space, a lower drum communicating with the upper drum, waterstoring means having a height substantially equal to the distancebetween the high and low levels of said upper drum and disposedsubstantiallyY between the planes including the said high and low levelsand communicating near its bottom with the water space of said upperdrum, said storing means having a capacity sufticient to permitvaporization in case ot an increased consumption of steam for asubstantial period of time wit-hout supplying feed water to the boiler,heating means, and a connection'between said lower drum and raid waterstoring means at a part of reduced action of said heating means andremote from said upper drum.

In testimony whereof I hereunto aiiix my signature. I

PETER NIKOLAUS FELIX LANGEN.

